直动阀
direct-acting valve
直动式
direct-acting
直动引擎
direct-acting engine
直接传动泵
direct drive pump
直接联动泵
direct-acting pump
直接驱动泵
direct drive pump
直
frank; just; straight; vertical
recto-
直板滚轧机
plate straightening rolls
直边
directed edge
直边外胎
beadless tyre
直边衍射
straight edge diffraction
直柄
straigh shank
直柄钻头
straight shank drill
直播
direct seeding; living broadcast
直布罗陀
Gibraltar
直布罗陀热
Gibraltar fever
直部
partes recta
直槽绞刀
straight reamer; straightreamer
直槽钻
straight fluted drill
直侧视镜
foroblique